Recombinant Newcastle disease virus kills liver cancer in vitro and in vivo

Aim: To construct and rescue a recombinant Newcastle disease virus that can express IP10 protein and evaluate its targeted killing effect on liver cancer in vivo and in vitro. Materials & methods: Fluorescence quantitative PCR, western blot and ELISA were used to detect the expression and secretion of IP10 in cells. The H22 mouse liver cancer cells were used to establish subcutaneous tumor-bearing mice experimental animal tumor models, and the tumor growth of mice in each group was observed while receiving treatment with rLasota. Results: The recombinant Newcastle disease virus was successfully constructed and can kill tumor cells successfully. Conclusion: The rLasota-IP10-IRES-EGFP achieves antitumor effects by killing hepatocellular carcinoma cells, enhancing T-lymphocyte infiltration in tumor tissues and inhibiting neovascularization.